61214303631 has 16 divisors (see below), whose sum is σ = 87997281120. Its totient is φ = 37627560960.

The previous prime is 61214303629. The next prime is 61214303687. The reversal of 61214303631 is 13630341216.

It is not a de Polignac number, because 61214303631 - 2¹ = 61214303629 is a prime.

It is a super-2 number, since 2×61214303631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61214303621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856446 + ... + 925163.

It is an arithmetic number, because the mean of its divisors is an integer number (5499830070).

Almost surely, 2^61214303631 is an apocalyptic number.

61214303631 is a deficient number, since it is larger than the sum of its proper divisors (26782977489).

61214303631 is a wasteful number, since it uses less digits than its factorization.

61214303631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782506.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 61214303631 its reverse (13630341216), we get a palindrome (74844644847).

The spelling of 61214303631 in words is "sixty-one billion, two hundred fourteen million, three hundred three thousand, six hundred thirty-one".